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4 pin Nokia cell phone proprietary connector layout
4 pin Nokia cell phone proprietary connector
at the mobile phone (under the back cover)
for data/flash cable only
Pin
Number
Pin
Name
Direction Description
1 GND --- Ground
2 TX --> Data Transmission
3 MBUS <--> Control bus
4 RX <-- Data Receiver
A Vbat   Voltage source
B     is battery type Li ion 74.5kohm to ground. NiMh 35Kohm to ground.
C BSI   battery thermistor. 25K to 40K
D Gnd --- Ground

Someone suggested another pinout for Nokia 3310: 1=MBUS; 2=GND; 3=RX; 4=TX

 

According to 9 reports in our database (7 positive and 2 negative) this pinout should be correct.

Is this pinout
Source(s) of this and additional information: private knowleage
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